Average abundance of nodulesCurrent estimates of average nodule abundance in four major locations.

By GRID-Arendal

Concentration of iron and manganese in deep sea nodulesVarying percentages of iron and manganese in nodules from different environments. The iron/manganese ratio is controlled by the ratio of hydrogenetic/diagenetic input and whether or not the sediments involved in diagenes...

By GRID-Arendal

Physical characteristics of manganese nodulesManganese nodules come in many shapes and sizes. They can be round, oblong, composite, or flat. Their shape can be influenced by the shape of the nucleus, the water content of the surrounding sediment, growth rates, and ...